Coal-elevator



(No Model.) 3 Sheets-Sheet 1.

J. CHASE. GOAL ELEVATOR.

No. 399,835. Patented Mar. 19, 1889.

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GOAL ELEVATOR. No. 399,835. Patented Mar. 19, 1889.

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(No Model.) 3 Sheets-Sheet 3. J. CHASE.

GOAL ELEVATOR.

No. 399,835. PatentedMar. 19, 1889.

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irn rains JONATHAN CHASE, OF BOSTON, MASSACHUSETTS.

COAL-ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 399,835, dated March19, 1889.. Application filed August 11, 1887. Renewed July 19, 1888.Serial No. 280,454. (No model.)

To aZZ whom it may concern.-

Be it known that I, JONATHAN CHASE, of Boston, county of Suffolk, andState of Massachusetts, have invented an Improvement in Goal Elevators,of which the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

This invention relates to barges or vessels especially adapted for thetransportation of coal, sand, and other granular material, it having forits object to construct a barge or vessel, as will be described, wherebythe cargo of coal, sand, or other granular material may be rapidlydischarged with substantially little labor.

In accordance with my invention thebarge or vessel is provided withafalse bottom'having its center preferably composed of a number ofdoors, each of which has a chain or rope or other suitable mechanismextended above the deck of the barge or vessel, where it is fastened inany suitable manner. The doors referred to are held normally closed bythe said chains or ropes, and when closed form an auxiliarychamberorpocket,in which is located, as herein shown, a screw conveyeradapted to be rotated by a stationary engine carried by the barge. Theauxiliary chamber or pocket referred to communicates with a secondchamber or pocket, through which is revolved a series of buckets orscoops attached to an endless belt or apron passed about and revolved bya pulley onthe shaft of the screw conveyer, and a pulley on ashafthavingbearings, as shown, in two stays or masts erected fromthe'deck of the barge or vessel.

The particular features in which my in ven tion consists will be pointedoutin the claims at the end of this specification.

Figure 1 is a longitudinal section of a barge or vessel constructed inaccordance with my invention, the section being taken on the line 00 mof Fig. 2, the stationary engine being shown in elevation. Fig. 2isasection of Fig.

1 in line 11 1 Figs. and 4, details to be referred to; and Fig. 5, asectional detail to be referred to, the section being taken on line 1 y,Fig. 1.

The barge or vessel (1,, which may be of any usual or wol lIniowlrconstruction, i s provided,

as herein shown, with a false bottom composed, preferably, ofoppositely-inclined parts, a a extended downward toward the center ofthe vessel, and having connected to or forming part of them, as hereinshown, a trough or channel, a (see Figs. land 3,) forming a chamber orpocket, a in which is located a screw conveyer, a, the top or upper wallof the said chamber being composed of movable sections, herein shown asdoors I) l), hinged, as at N, to the parts a a (See Fig. 3.)

Each door 7) b has connected to it, as herein shown, a rope, rod, orchain, 19*, extended to the deck and secured to a drum or roller, 11*,on a shaft, b provided, as herein shown, with a hand wheel, Z), and abrake mechanism, consisting, as shown, of a pinion, I), and a pawl, b

The chamber or pocket a communicates at one end, as herein shown, with asecond chamber or pocket, 0, (see Figs. 1 and 2,) into which coal orother material is deposited by the screw conveyer a.

The coal or other material in the vessel a, which is supported above thefalse bottom, is admitted into the chamber a by unwinding or releasingthe ropes or chains so as to permit the doors Z) Z) to be opened by theweight of the coal or other material upon them.

The doors Z) b will be opened to admit such quantity of coal or othermaterial into the chamber a as will permit the screw conveyer to beoperated. The coal thus admitted to the chamber a is carried forward bythe screw conveyer and deposited in the auxiliary chamber or pocket 0,the said screw conveyer be ing driven, as herein shown, by a belt, 0,passed about a pulley, 0?, on the shaft 0 of the said screw conveyer,and about a pulley, c, on the main shaft 0 of a stationary engine, o,herein shown as supported upon a platform, 0". The coal or othermaterial deposited in the pocket c is taken out thereof, as hereinshown, by buckets or scoops cl, secured to an, endless belt or apron,cl, passed about a pulley, (P, on the shaft 0 and about a pulley, (i 011a shaft, (1*, having hearings in two stays or masts, (Z herein shown asextended below the deck of the vessel, and stepped, as at d, in crossbeams or braces (l The pulleys are herein shown as hexagonal in shape,to prevent slipping of the endless belt or apron, which is made totravel by the rotation of the screw-shaft c".

The coal or other material carried upward by the buckets (Z may bedischarged into a chute, d pivoted on a shaft, (Z having bearings in themasts (1 the lowermost end of the said chute resting upon a staging orplatform, @1 secured by suitable braces, (Z to the said masts.

The chute is provided with an opening, 6, (see Fig. 4,) through whichthe endless chain of buckets travels, and at the sides of the saidopening are erected guards or shields e, in which is supported the arbore of a gate or valve, adapted to occupy the position shown in Fig. 2when the chute is tipped into the position shown in the said figure, orto stand upright in the position shown in Fig. 3 when the chute istipped in the opposite direction to that shown in Fig. 2that is, intothe position shown in Fig. 3. \Vith the chute d in the position shown inFig. 2 the coal or other material falls from the buckets, and isdischarged from the chute in the direction of arrow 20 into, it may be,a second chute-not shown,- but which in practice may be supported fromthe wharf or-another barge or vessel lying on the port side of thebarge, or from the barge itself.

It may be desired to discharge the load on the starboard side of thebarge, and in this case the chute d will be turned on its pivot by a manon the platform (W, or in other manner, so as to occupy the positionshown in Fig. 3. In this position the gate or valve 6 is erect, and thecoal discharged from the buckets falls beyond the said gates and slidesdown the chute on each side of the shields c, or in the direction ofarrow 2].

I have herein described the doors I) I) as extended the length of thebarge or vessel; but instead thereof I may employ a number of smalldoors connected above the deck and operated independently of each other,so that the amount of coal or other material admitted to the chamber c0may be increased as desired.

I do not desire to limit myself to the exact mechanism shown for holdingthe doors in their closed position.

I claim 1. Abarge or vessel provided with a trough or channel, aextended longitudinally the length of the said vessel and formingpockets at and c, a metallic screw, a, located in the trough (0 andhaving its shaft 0 extended through the pocket 0, an endless chain ofbuckets or scoops driven from the shaft 0 a pivoted chute, d, having anopening through which the endless chain of buckets passes, and means,substantially as described, to rotate the shaft 0", substantially asspecified.

2. A barge or vessel. provided with a trough or channel, of, extendinglengthwise thereof, and having a chamber or pocket, 0, a metallic screw,a", located in the said trough, and having its shaft 0 extended throughthe said chamber or pocket 0, an endless chain of buckets driven fromthe said shaft, a chute to receive thematerial. discharged from the saidbuckets, hinged doors or sections 1) b to co v er or partly cover thetop of the said trough, and connections foropcrating said doors fromabove, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribingwitnesses.

JONATHAN CHASE.

lVitnesses:

.TAs. H. CHURCHILL, F. L. EMERY.

